1.A Prison where you are allowed to leave during the day to go to a place of employment, the pub, score crack or just visit the local children's playground.

2.A term used to describe a Pontins Holiday parks. However, open prisons as described in 1 are probably less grubby and better maintained. They are also frequented by fewer petty criminals.
"I've just been on a mini-break to Pontins near Burnham-on-Sea. Would have had a better time at Strangeways"
"I've heard it's a bit of an open prison"
by gonkenstien August 16, 2012
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An open prison is an arrangement option for those in later stages of prison releases and offer settings with supervision of various systems and environmental changes and degrees. Because of the cooperative nature of these relations, growth is far better than traditional separation and isolation
The open prison has to be managed by a well trained leader who is not only interested in reform but in public interests.
by Maybes new year December 7, 2018
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